EVAL-LT8390A-AZ

EVAL-LT8390A-AZ is an evaluation circuit to evaluate 60V high-frequency synchronous GaN buck-boost controller featuring the LT8390A and 4 EPC GaN FETs. This circuit outputs 24V and maintains tight regulation with up to 5A load current and over an input voltage from 8V to 60V. 2MHz switching frequency provides a small footprint using a single 6mm x 6mm x 6mm inductor while maintaining high efficiency. The LT8390A has a wide input voltage range from 4V to 60V. It can regulate an output as a boost, a buck, or a 4-switch boost-buck controller. It has an adjustable switching frequency between 600KHz and 2MHz. It has an option for external frequency synchronization or spread spectrum frequency modulation. Its high switching frequency is unique to buck-boost controller ICs. Because of this, it can be used for high power when the input may be above, below, or equal to the output.

• 24V typ output voltage at VIN = 8V - 60V
• 8.9V typ EN/UVLO threshold (rising turn-on)
• 2MHz switching frequency at JP2 = Disable SS (SSFM Off)
• 94% typical efficiency at VIN = 12V, IOUT = 5A

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